The first one that comes to mind is a super simple (and hideous) app to stick images together in the layout of your multiple monitors in order to create a spann

The first one that comes to mind is a super simple (and hideous) app to stick images together in the layout of your multiple monitors in order to create a spanned wallpaper with a different image on each display. I created it ages ago when Electron was relatively new, and I still use it every month or so. https://github.com/jacobmischka/wallpaper-adhesive https://github.com/jacobmischka/wallpaper-adhesive